docs: Phase A repo structure — archive, product, kebab-case

- Move copilot history and CSV to docs/archive/
- Add docs/product/ (SSP, intermediate, genre packs) and engineering/adrs/
- Rename all spaced/special-char doc paths to kebab-case
- Nest competitive GTM under docs/gtm/competitive/
- Point README and NORTH_STAR at CANONICAL_STRATEGY
- Leave code/ unchanged for later monorepo Phase B

docs/product/intermediate.md

@@ -0,0 +1,15 @@
+# Intermediate product (tourism, chambers, visitor bureaus)
+
+Model 2: destinations and membership organizations as discovery nodes.
+
+## Intent
+
+One intermediate relationship should bring many member endpoints online. Boards get an aggregating MCP, member onboarding (via SSP patterns), and a simple dashboard of hits and category demand. Funding often sits in lodging-tax or destination marketing budgets.
+
+## Detail source
+
+[Canonical Strategy](../strategy/CANONICAL_STRATEGY.md) (§4 Model 2, §7 GTM wedge).
+
+## Build status
+
+Not implemented. Engineering Priority 1 after Model 1 spine is real.